1 files changed, 34 insertions, 0 deletions
diff --git a/tests/shell/testcases/nft-f/0032pknock_0 b/tests/shell/testcases/nft-f/0032pknock_0
new file mode 100755
index 0000000..94fc840
--- /dev/null
+++ b/tests/shell/testcases/nft-f/0032pknock_0
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+set -e
+
+RULESET="define guarded_ports = {ssh}
+
+table inet portknock {
+        set clients_ipv4 {
+                type ipv4_addr
+                flags timeout
+        }
+
+        set candidates_ipv4 {
+                type ipv4_addr . inet_service
+                flags timeout
+        }
+
+        chain input {
+                type filter hook input priority -10; policy accept;
+
+                tcp dport 10001 add @candidates_ipv4 {ip  saddr . 10002 timeout 1s}
+                tcp dport 10002 ip  saddr . tcp dport @candidates_ipv4 add @candidates_ipv4 {ip  saddr . 10003 timeout 1s}
+                tcp dport 10003 ip  saddr . tcp dport @candidates_ipv4 add @candidates_ipv4 {ip  saddr . 10004 timeout 1s}
+                tcp dport 10004 ip  saddr . tcp dport @candidates_ipv4 add @candidates_ipv4 {ip  saddr . 10005 timeout 1s}
+                tcp dport 10005 ip  saddr . tcp dport @candidates_ipv4 add @clients_ipv4 {ip  saddr timeout 600s} log prefix \"Successful portknock: \"
+
+                tcp dport \$guarded_ports ip  saddr @clients_ipv4 counter accept
+                tcp dport \$guarded_ports ct state established,related counter accept
+
+                tcp dport \$guarded_ports reject with tcp reset
+        }
+}"
+
+$NFT -f - <<< "$RULESET"